CN113680162B - Medical waste incineration waste gas's flow decomposition processing apparatus - Google Patents
Medical waste incineration waste gas's flow decomposition processing apparatus Download PDFInfo
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- CN113680162B CN113680162B CN202110445104.3A CN202110445104A CN113680162B CN 113680162 B CN113680162 B CN 113680162B CN 202110445104 A CN202110445104 A CN 202110445104A CN 113680162 B CN113680162 B CN 113680162B
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- B01D47/06—Spray cleaning
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
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- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
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- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2251/00—Reactants
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- B01D2251/304—Alkali metal compounds of sodium
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to the technical field of garbage treatment, in particular to a process decomposition treatment device for medical garbage incineration waste gas, which comprises the following components: the upper part of the dust removing interlayer is provided with an annular dust falling chamber, the lower part of the dust removing interlayer is provided with a deposition space, glycerin is arranged in the deposition space, and a spraying system for spraying the glycerin downwards from the top of the dust falling chamber is arranged outside the dust removing interlayer; the invention sets the dust removing interlayer and the neutralizing cylinder to treat the dust and the acid gas in the waste gas respectively, the dust particles and the metal particles in the waste gas are primarily captured by using the glycerin with higher viscosity in the dust removing interlayer so as to reduce the content of the particles in the waste gas, and simultaneously, dioxin can be absorbed from the waste gas to prevent the dioxin from being discharged.
Description
Technical Field
The invention relates to the technical field of garbage treatment, in particular to a flow decomposition treatment device for medical garbage incineration waste gas.
Background
Medical waste refers to contaminated waste produced by hospitals that comes into contact with blood, flesh, etc. of patients. Such as used cotton balls, gauze, rubberized fabrics, waste water, disposable medical devices, post-operative waste, expired medicines, and the like. According to the medical detection report of the national health department, the medical waste has the characteristics of space pollution, acute infection, latent pollution and the like, and the harm of viruses and germs is tens, hundreds and even thousands times of that of common household waste. If the treatment is improper, serious pollution to the environment is caused, the medical waste can become a source of epidemic disease, the medical waste enters an obliquely downward fire grate (the fire grate is divided into a drying area, a combustion area and a burnout area) through a feeding hopper, and the waste is pushed downwards due to the staggered movement among the fire grates, so that the waste sequentially passes through all areas on the fire grate until the burnout is discharged out of a hearth. Combustion air enters from the lower part of the fire grate and is mixed with garbage; and the high-temperature flue gas passes through the heating surface of the boiler to generate hot steam, the flue gas is cooled, and finally the flue gas is discharged after being treated by the flue gas treatment device.
Since a large amount of organic chloride such as waste plastics, rubber, leather and the like exists in medical waste, heavy metal, dust, a large amount of acid gas such as hydrogen chloride and the like are generated after incineration. Therefore, how to effectively treat these pollutants becomes a problem to be solved. The acid gas treatment technology mainly comprises a dry process, a semi-dry process, a wet process and a circulating fluidized bed process; the method mainly adopts means such as activated carbon adsorption, a bag type dust collector and an electrostatic dust collector for removing heavy metals and dust, but the means has poor effect of removing dust with fine particle size, and the bag type dust collector has the problems of filter bag blockage, crushing and the like, and the means has the defects of comprehensively removing pollutants in waste gas, so that in order to meet the continuously improved waste incineration flue gas emission standard, particularly the problems of acid gas and a large amount of fly ash disposal, a new process capable of meeting more advanced, more scientific and efficient flue gas treatment is required.
The invention of application number CN201510106490.8 therefore discloses a purification method of waste gas from medical waste incineration, the wet absorption step adopts an absorption tower to absorb acidic substances in flue gas, the dry dust removal step adopts a dust remover to remove solid particles and heavy metals, but the dry dust removal step adopts a lime slurry spraying method to react with the acidic gases, because calcium hydroxide is difficult to dissolve in water, a sufficient contact reaction is difficult to carry out in the reaction process, dioxin exists in the mixture, the substances are very stable, extremely difficult to dissolve in water and have high toxicity, the substances cannot be removed in the first step, the substances can be attached to a subsequent adsorbent, and secondary pollution is easy to cause when the adsorbent is replaced or the lime slurry is replaced, so a decomposition treatment device capable of effectively removing the dioxin in the waste gas is needed.
Disclosure of Invention
The invention aims to provide a flow decomposition treatment device for medical waste incineration waste gas, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a treatment device for the flow decomposition of waste gas generated by the incineration of medical waste comprises:
the upper part of the dust removing interlayer is provided with an annular dust falling chamber, the lower part of the dust removing interlayer is provided with a deposition space, glycerin is arranged in the deposition space, a spraying system for spraying the glycerin downwards from the top of the dust falling chamber is arranged outside the dust removing interlayer, an air inlet pipe arranged along the tangential direction of the dust falling chamber is arranged outside the upper part of the dust removing interlayer, and an included angle of 30 degrees is formed between the air inlet pipe and the horizontal direction;
the neutralization cylinder is positioned at the inner side of the dust removing interlayer and connected above the deposition space, neutralization liquid is arranged in the neutralization cylinder, the neutralization cylinder is connected with the deposition space through a one-way valve, and a foam cylinder is arranged outside the one-way valve;
the pneumatic stirring frame is positioned in the dust fall chamber and is rotationally connected relative to the dust fall chamber;
the ash tending fan is positioned in the deposition space and connected to the bottom of the pneumatic stirring frame;
the dust accumulation cover is positioned at the bottom of the deposition space, the lower end face of the dust tending fan is attached to the upper end face of the dust accumulation cover, and a dust collecting chamber is formed below the dust accumulation cover.
The waste gas generated by the incinerator enters the annular dust settling chamber from the air inlet pipe (the number of the air inlet pipes is two or more than two of the air inlet pipes is unequal), and because the waste gas is arranged along the tangential direction of the dust settling chamber and has an included angle of 30 degrees with the horizontal direction, two or more air flows downwards along the rotation of the dust settling chamber can be formed after the gas enters the dust settling chamber, meanwhile, the spraying system sprays glycerin in the deposition space from the upper part and can be fully contacted with the waste gas, the particles in the waste gas are wrapped, in the prior art, dust is settled by utilizing water mist, the water mist is easy to evaporate due to high temperature of the waste gas, so that good dust settling and removing effects cannot be achieved.
Preferably, the bottom of the neutralization cylinder is provided with an annular connecting part, the lower edge of the connecting part is provided with an oil collecting net which is continuously distributed along a circle, the middle position of the oil collecting net is downwards raised, the mesh number of the oil collecting net is 60 meshes, and the glycerol liquid level in the deposition space is below the oil collecting net.
The glycerol left from the first wall surface (the inner wall surface of the dust removing interlayer) flows downwards along the connecting part, then spreads to the oil collecting net and finally gathers on the lowest point of the downward bulge to fall, so that the whole oil collecting net is fully filled with glycerol oil, and the waste gas passes through the oil to enter the one-way valve, so that the waste gas is subjected to further dust removing treatment.
Preferably, the pneumatic stirring frame comprises vertical support rods, guide plates, transverse support rods and a rotating shaft, wherein the number of the vertical support rods is several, the first end of the rotating shaft is fixed with a plurality of guide plates which are distributed correspondingly to the vertical support rods, the second end of the rotating shaft is rotationally connected with the dust accumulation cover, the vertical support rods are fixed at the other ends of the transverse support rods, and the vertical support rods are distributed in parallel, and the guide plates are arranged on the vertical support rods.
The rotating shaft and the dust accumulation cover are free to rotate, after the guide plate on the vertical support rod is impacted by waste gas, the rotating shaft rotates relative to the dust accumulation cover, and the whole vertical support rod and the transverse support rod rotate, so that the dust-tending fan connected to the rotating shaft is driven to rotate, and particles are continuously cleaned and concentrated on the edge of the dust-tending fan in the rotating process, so that the dust-tending fan enters the dust accumulation cover.
Preferably, the number of the guide plates on one vertical support rod is at least two, the included angle between the guide plate on one side of the second wall surface close to the dust removing interlayer and the second wall surface is an acute angle, the included angle between the guide plate on one side of the first wall surface close to the dust removing interlayer and the first wall surface is an acute angle, and the guide plates on the two adjacent vertical support rods are distributed in a staggered manner in the height direction.
Through such structure can make waste gas when blowing on the deflector, not only played the effect of promoting, also will waste gas simultaneously to second wall and first wall direction, increase the contact effect between waste gas and second wall and the first wall, and then make the particulate matter in the waste gas take place to contact and catch with the glycerin, play good dust removal effect.
Preferably, the spraying system comprises an atomizing nozzle, a liquid supply pipeline and a circulating pump, wherein the circulating pump is connected in series on the liquid supply pipeline, one end of the liquid supply pipeline is positioned on the upper layer of the glycerol layer in the deposition space, the other end of the liquid supply pipeline is connected with the atomizing nozzle, the atomizing nozzle is positioned above the dust fall chamber, and the glycerol sprayed by the atomizing nozzle completely covers the first wall surface and the second wall surface of the dust removal interlayer.
The atomized glycerin is sprayed from the upper part by the atomization nozzle, one part slides downwards along the first wall surface and the second wall surface, and the other part directly falls down in the dust fall room, so that the aim of fully contacting with the particulate matters in the waste gas is fulfilled.
Preferably, the bubble cylinder comprises an outer cover, a floating ball chamber, a valve port, a floating ball and an inner cover, wherein the inner cover is positioned on the inner side of the outer cover, the inner cover is in sliding connection with the outer cover, the valve port is positioned below the outer cover, the one-way valve is arranged at the valve port, the floating ball chamber is positioned above the outer cover, the floating ball is positioned in the floating ball chamber, and the floating ball is in transmission connection with the inner cover.
When the one-way valve is opened by the pressure of the waste gas, the waste gas enters the inner side of the inner cover from the valve port and is discharged along the holes on the inner cover and the outer cover to form a plurality of bubbles, the bubbles and the alkali solution are subjected to neutralization reaction, the density of the floating ball is set at the density of the preset concentration of the solution, when the concentration of the solution is reduced due to the neutralization reaction, the floating ball floats upwards, so that the inner cover and the outer cover generate relative displacement, a lever can be arranged by utilizing the displacement, the liquid supplementing valve of the alkaline solution is opened, and the concentration of the alkali solution is kept.
Preferably, the height of the inner cover is smaller than that of the outer cover, an exhaust hole window is arranged on the inner cover, an exhaust groove is formed in the outer wall of the outer cover, an air inlet space is formed in the lower portion of the outer cover, an exhaust space is formed in the inner side of the inner cover, and a plurality of air guide holes distributed longitudinally are formed in the exhaust hole window.
When the concentration of the solution is reduced due to the neutralization reaction, the floating ball floats upwards, so that the inner cover and the outer cover generate relative displacement, the area between the exhaust hole window on the inner cover and the exhaust groove is enlarged, and the generated air bubble quantity is more, so that more sufficient reaction is achieved, and the insufficient reaction caused by the concentration reduction is compensated.
Preferably, an opening is formed above the float ball chamber, the float ball is fixedly connected with the inner cover through a connecting rod, and when the float ball floats up and down, the relative overlapping area between the exhaust hole window and the exhaust groove changes.
The upper part of the floating ball chamber is provided with an opening, so that the environment where the floating ball is positioned is prevented from being influenced by bubbles, the solution environment in the floating ball chamber is relatively stable, and the change of the overall solution density can be accurately reflected.
Preferably, the ash-smoothing fan comprises an upper baffle plate, an extrusion inclined plane and a rear baffle plate, wherein the upper baffle plate gradually extends downwards along the movement direction of the upper baffle plate and is connected with the upper end of the rear baffle plate, the rear baffle plate is provided with the extrusion inclined plane towards the movement direction, and an ash-smoothing space is formed in front of the extrusion inclined plane.
When the ash-stroking fan rotates continuously, sediment in the solution is collected downwards by the upper baffle plate, the sediment can be prevented from escaping by the rear baffle plate, and the sediment in the ash-stroking space is extruded outwards continuously by the extrusion inclined plane to be concentrated.
Preferably, a first one-way valve and a second one-way valve are arranged between the dust accumulation cover and the outer edge of the dust tending fan, the first one-way valve is positioned below the second one-way valve, and dust falling spaces communicated with the dust collecting chamber are formed in the inner sides of the first one-way valve and the second one-way valve.
When the accumulated dust particles are continuously extruded by the dust-tending fan, the accumulated dust particles can enter the dust falling space from the first one-way valve, meanwhile, oil in the dust collecting chamber can float upwards and continuously run out from the second one-way valve, finally, the dust particles can be collected in the dust collecting chamber, the external glycerin is ensured to be relatively clean, and the glycerin and dust in the dust collecting chamber can be regularly cleaned.
Compared with the prior art, the invention has the beneficial effects that:
the invention sets the dust removing interlayer and the neutralizing cylinder to treat the dust and the acid gas in the waste gas respectively, the dust particles and the metal particles in the waste gas are primarily captured by using the glycerin with higher viscosity in the dust removing interlayer so as to reduce the content of the particles in the waste gas, and simultaneously, dioxin can be absorbed from the waste gas to prevent the dioxin from being discharged.
Drawings
FIG. 1 is a schematic structural view of a treatment device for the flow decomposition of medical waste incineration exhaust gas;
FIG. 2 is a schematic view of the construction of a dust settling chamber in a treatment device for the flow-chart decomposition of waste gas generated by the incineration of medical wastes;
FIG. 3 is a schematic structural view of a pneumatic stirring frame in the flow-path decomposition treatment device for the medical waste incineration waste gas;
FIG. 4 is a schematic structural view of a bubble canister in the treatment device for the flow decomposition of the medical waste incineration exhaust gas;
FIG. 5 is a schematic diagram of the structure of an oil collecting net in the treatment device for the flow decomposition of the medical waste incineration waste gas;
FIG. 6 is a schematic diagram of the structure of FIG. 1A according to the present invention;
fig. 7 is a schematic diagram of the ash-soothing fan in the treatment device for the fluidized decomposition of the medical waste incineration waste gas.
Reference numerals in the drawings: 1. a dust removing interlayer; 101. a dust fall room; 102. a first wall surface; 103. a second wall surface; 104. a deposition space; 11. an atomizing nozzle; 12. a liquid supply pipe; 13. a circulation pump; 14. an air inlet pipe; 2. a neutralization drum; 201. neutralizing liquid; 21. a one-way valve; 22. an oil collecting net; 221. a connection part; 3. a pneumatic stirring frame; 31. a vertical support rod; 32. a guide plate; 33. a transverse support bar; 34. a rotating shaft; 4. a dust-removing fan; 401. a dust-smoothing space; 41. an upper baffle; 42. extruding the inclined plane; 43. a rear baffle; 5. a dust cover; 501. a dust collection chamber; 502. a dust fall space; 51. a first one-way valve; 52. a second one-way valve; 6. a bubble tube; 601. an air intake space; 602. an exhaust space; 61. an outer cover; 611. an exhaust groove; 62. a float ball chamber; 63. a valve port; 64. a floating ball; 641. a connecting rod; 65. an inner cover; 651. and an exhaust hole window.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples: as shown in fig. 1 to 7, the treatment device for the flow decomposition of the waste gas from the incineration of medical waste comprises:
the upper part of the dust removing interlayer 1 is provided with an annular dust settling chamber 101, the lower part of the dust removing interlayer 1 is provided with a deposition space 104, glycerin is arranged in the deposition space 104, a spraying system for spraying the glycerin downwards from the top of the dust settling chamber 101 is arranged outside the dust removing interlayer 1, the upper part of the dust removing interlayer 1 is provided with an air inlet pipe 14 arranged along the tangential direction of the dust settling chamber 101, and an included angle of 30-45 degrees is formed between the air inlet pipe 14 and the horizontal direction;
the neutralization cylinder 2 is positioned at the inner side of the dust removing interlayer 1 and is connected above the deposition space 104, the neutralization cylinder 2 is internally provided with a neutralization liquid 201, the neutralization cylinder 2 is connected with the deposition space 104 through a one-way valve 21, and a foam cylinder 6 is arranged outside the one-way valve 21;
the pneumatic stirring frame 3 is positioned in the dust fall chamber 101 and is rotationally connected with the dust fall chamber 101;
the ash tending fan 4 is positioned in the deposition space 104, and the ash tending fan 4 is connected to the bottom of the pneumatic stirring frame 3;
the dust accumulation cover 5, the dust accumulation cover 5 is positioned at the bottom of the deposition space 104, the lower end surface of the dust tending fan 4 is attached to the upper end surface of the dust accumulation cover 5, and a dust collection chamber 501 is formed below the dust accumulation cover 5.
The waste gas generated by the incinerator enters the annular dust settling chamber 101 from the air inlet pipe 14 (the number of the air inlet pipe 14 is two or more than two, the waste gas is unequal), and as the waste gas is arranged along the tangential direction of the dust settling chamber 101 and forms an included angle of 30-45 degrees with the horizontal direction, two or more air flows downwards along the rotation of the dust settling chamber 101 can be formed after the air enters the dust settling chamber 101, meanwhile, the spraying system sprays glycerin in the deposition space 104 from the upper part, the glycerin can be fully contacted with the waste gas, particles in the waste gas are wrapped up, dust is settled by utilizing the water mist in the prior art, the water mist is easy to evaporate due to high temperature of the waste gas, so that the good dust settling and removing effects are not achieved, the particles in the waste gas can be attached to the inner wall and deposited through the annular dust settling chamber 101 and the spray, on the one hand, the contact between the air flow and the two wall surfaces can be more, meanwhile, the dust 4 at the bottom can be driven to rotate, the deposited dust can be guaranteed to be neutralized, the dust can be continuously contacted with the particles in the glycerin can be guaranteed, and the particles can be continuously discharged into the exhaust gas through the cylinder 21 after passing through the exhaust gas foam, and the exhaust valve is fully discharged through the exhaust valve 2, and the exhaust valve is fully contacted with the waste gas in the exhaust valve in the exhaust state in the air in the prior art.
Specifically, as shown in fig. 5, the bottom of the neutralization cylinder 2 is provided with an annular connecting part 221, the lower edge of the connecting part 221 is provided with a continuously distributed oil collecting net 22, the middle position of the oil collecting net 22 is downwards raised, the mesh number of the oil collecting net 22 is 40-60 mesh, and the glycerol liquid level in the deposition space 104 is below the oil collecting net 22.
The glycerin left from the first wall surface 102 (the inner wall surface of the dust removing interlayer 1) flows down along the connecting portion 221, then spreads to the oil collecting net 22, finally gathers and falls at the lowest point of the downward bulge, therefore, glycerin oil is fully distributed on the whole oil collecting net 22, and the waste gas passes through the oil to enter the one-way valve 21, so that the waste gas is subjected to further dust removing treatment.
Specifically, as shown in fig. 1-3, the pneumatic stirring frame 3 comprises a plurality of vertical supporting rods 31, guide plates 32, transverse supporting rods 33 and rotating shafts 34, wherein the number of the vertical supporting rods 31 is several, a plurality of guide plates 32 which are distributed correspondingly to the vertical supporting rods 31 are fixed at the first end of each rotating shaft 34, the second end of each rotating shaft 34 is rotationally connected with the dust accumulation cover 5, the vertical supporting rods 31 are fixed at the other ends of the transverse supporting rods 33, the plurality of vertical supporting rods 31 are distributed in parallel, and the guide plates 32 are arranged on the vertical supporting rods 31.
The rotating shaft 34 and the dust accumulation cover 5 are free to rotate, when the guide plate 32 on the vertical support rod 31 is impacted by waste gas, the rotating shaft 34 rotates relative to the dust accumulation cover 5, and the whole vertical support rod 31 and the transverse support rod 33 rotate, so that the dust-tending fan 4 connected to the rotating shaft 34 is driven to rotate, and particles are continuously cleaned and concentrated on the edge of the dust-tending fan 4 in the rotating process, so that the particles enter the dust accumulation cover 5.
Specifically, as shown in fig. 1-3, at least two guide plates 32 are located on one vertical support rod 31, an included angle between the second wall surface 103 and the guide plate 32 on the side close to the second wall surface 103 of the dust removing interlayer 1 is an acute angle, an included angle between the first wall surface 102 and the guide plate 32 on the side close to the first wall surface 102 of the dust removing interlayer 1 is an acute angle, and the guide plates 32 on the two adjacent vertical support rods 31 are staggered in the height direction.
By means of the structure, when the exhaust gas is blown on the guide plate 32, the exhaust gas not only plays a pushing role, but also is guided to the second wall surface 103 and the first wall surface 102, the contact effect between the exhaust gas and the second wall surface 103 and the first wall surface 102 is increased, and then particles in the exhaust gas are contacted with glycerol and captured, so that a good dust removing effect is achieved.
Specifically, as shown in fig. 1, the spraying system includes an atomizer 11, a liquid supply pipe 12 and a circulation pump 13, the circulation pump 13 is connected in series on the liquid supply pipe 12, one end of the liquid supply pipe 12 is located at the upper layer of the glycerin layer in the deposition space 104, the other end of the liquid supply pipe 12 is connected with the atomizer 11, the atomizer 11 is located above the dust settling chamber 101, and glycerin sprayed from the atomizer 11 completely covers the first wall surface 102 and the second wall surface 103 of the dust settling interlayer 1.
The atomized glycerin is sprayed from above by the atomization nozzle 11, one part of the atomized glycerin slides down along the first wall surface 102 and the second wall surface 103, and the other part of the atomized glycerin directly falls down in the dust settling chamber 101, so that the purpose of fully contacting with the particulate matters in the waste gas is achieved.
Specifically, as shown in fig. 4, the bubble column 6 includes a housing 61, a float chamber 62, a valve port 63, a float 64, and an inner cover 65, the inner cover 65 is located inside the housing 61, the inner cover 65 is slidably connected with respect to the housing 61, the valve port 63 is located below the housing 61, the check valve 21 is installed at the valve port 63, the float chamber 62 is located above the housing 61, the float 64 is located in the float chamber 62, and the float 64 is in driving connection with the inner cover 65.
When the check valve 21 is opened by the pressure of the exhaust gas, the exhaust gas enters the inner side of the inner cover 65 from the valve port 63 and is discharged along the holes on the inner cover 65 and the outer cover 61 to form a plurality of bubbles, the bubbles and the alkaline solution are subjected to neutralization reaction, the density of the floating ball 64 is set at the density of the predetermined concentration of the solution, when the concentration of the solution is reduced due to the neutralization reaction, the floating ball 64 floats upwards, so that the inner cover 65 and the outer cover 61 are relatively displaced, a lever can be arranged by using the displacement, a liquid supplementing valve of the alkaline solution is opened, and the concentration of the alkaline solution is kept.
Specifically, as shown in fig. 4, the height of the inner cover 65 is smaller than that of the outer cover 61, the inner cover 65 is provided with a vent window 651, the outer wall of the outer cover 61 is provided with a vent groove 611, the lower part of the outer cover 61 forms an air inlet space 601, the inner side of the inner cover 65 forms a vent space 602, and the vent window 651 is provided with a plurality of air guide holes distributed along the longitudinal direction.
When the concentration of the solution decreases due to the neutralization reaction, the floating ball 64 floats upward, so that the inner cover 65 and the outer cover 61 are relatively displaced, the area between the exhaust hole window 651 on the inner cover 65 and the exhaust hole 611 is increased, and thus the generated air bubbles are more, and more sufficient reaction is achieved to compensate for insufficient reaction caused by the decrease of the concentration.
Specifically, an opening is formed above the float chamber 62, the float 64 is fixedly connected to the inner cover 65 via a link 641, and when the float 64 floats up and down, the relative overlapping area between the exhaust hole window 651 and the exhaust hole 611 changes.
By having an open opening above the float chamber 62, the environment in which the float 64 is located can be prevented from being affected by bubbles, the environment of the solution in the float chamber 62 is relatively stable, and the change in the overall solution density can be accurately reflected.
Specifically, as shown in fig. 7, the ash smoothing fan 4 includes an upper baffle 41, a pressing inclined surface 42, and a rear baffle 43, the upper baffle 41 gradually extends downward in the moving direction thereof and is connected to the upper end of the rear baffle 43, the rear baffle 43 has the pressing inclined surface 42 toward the moving direction, and an ash smoothing space 401 is formed in front of the pressing inclined surface 42.
While the ash-pushing fan 4 is continuously rotated, the sediment in the solution is collected downwards by the upper baffle 41, the sediment is prevented from escaping by the rear baffle 43, and the sediment in the ash-pushing space 401 is continuously extruded outwards by the extrusion inclined plane 42 to be concentrated.
Specifically, as shown in fig. 6, a first check valve 51 and a second check valve 52 are arranged between the dust accumulation cover 5 and the outer edge of the dust smoothing fan 4, the first check valve 51 is located below the second check valve 52, and dust falling spaces 502 communicated with the dust collecting chamber 501 are arranged on the inner sides of the first check valve 51 and the second check valve 52.
When the accumulated dust particles are continuously extruded by the dust-pushing fan 4, the accumulated dust particles enter the dust falling space 502 from the first one-way valve 51, meanwhile, the oil in the dust collecting chamber 501 floats upwards and continuously flows out from the second one-way valve 52, and finally, the dust particles are collected in the dust collecting chamber 501, so that the external glycerin is ensured to be relatively clean, and the glycerin and the dust in the dust collecting chamber 501 are cleaned regularly.
Working principle: the waste gas generated by the incinerator enters the annular dust settling chamber 101 from the air inlet pipe 14 (the number of the air inlet pipes 14 is two or more than two of the air inlet pipes are unequal), and because the waste gas is arranged along the tangential direction of the dust settling chamber 101 and forms an included angle of 30-45 degrees with the horizontal direction, two or more air flows downwards along the rotation of the dust settling chamber 101 are formed after the gas enters the dust settling chamber 101, and meanwhile, the spraying system sprays glycerin in the deposition space 104 from the upper part, so that the glycerin can be fully contacted with the waste gas, particles in the waste gas are wrapped up, while in the prior art, dust settling by utilizing water mist is easy to cause water mist evaporation due to high temperature of the waste gas, so that good dust settling and removing effects are not achieved, and the particles in the waste gas can be adhered in the inner wall and deposited through the annular dust settling chamber 101 and spraying, so that good dust removing effects are achieved, the pneumatic stirring frame 3 can make more contact between the air flow and two wall surfaces, and can drive the ash-smoothing fan 4 at the bottom to rotate at the same time, dust particles deposited at the bottom are concentrated to ensure that glycerol can continuously catch particles in the waste gas, the waste gas after being treated by the particles enters the bottom of the neutralization cylinder 2 through the one-way valve 21 and is fully contacted with alkaline solution for neutralization reaction through bubbling of the bubble cylinder 6, finally, the glycerol left from the first wall surface 102 (the inner wall surface of the dedusting interlayer 1) flows down along the connecting part 221 and then spreads on the oil collecting net 22, finally, the glycerol oil is collected at the lowest point of downward bulge and falls down, therefore, the whole oil collecting net 22 is fully covered with the glycerol oil, the waste gas only enters the one-way valve 21 after passing through the layer of oil, the waste gas is subjected to further dust-reducing treatment, when the check valve 21 is opened by the pressure of the exhaust gas, the exhaust gas enters the inner side of the inner cover 65 from the valve port 63 and is discharged along the holes on the inner cover 65 and the outer cover 61 to form a plurality of bubbles, the bubbles are neutralized with the alkali solution, the density of the floating ball 64 is set at the density of the predetermined concentration of the solution, when the concentration of the solution is reduced by the neutralization reaction, the floating ball 64 floats upwards to enable the inner cover 65 and the outer cover 61 to generate relative displacement, a lever can be arranged by utilizing the displacement to open the liquid supplementing valve of the alkali solution to keep the concentration of the alkali solution, when the concentration of the solution is reduced by the neutralization reaction, the floating ball 64 floats upwards to enable the inner cover 65 and the outer cover 61 to generate relative displacement, the area between the exhaust hole window 651 on the inner cover 65 and the exhaust groove 611 is enlarged, so that the generated bubbles are more, the reaction is more sufficient, so that the reaction is insufficient caused by concentration reduction, in the process of continuously rotating the ash tending fan 4, sediment in the solution is collected downwards by the upper baffle 41, the sediment can be prevented from escaping by the rear baffle 43, meanwhile, the sediment in the ash tending space 401 is continuously extruded outwards by the extrusion inclined plane 42 to be concentrated, when the accumulated dust particles are continuously extruded by the ash tending fan 4, the accumulated dust particles enter the dust falling space 502 from the first one-way valve 51, oil in the dust collecting chamber 501 floats upwards and continuously escapes from the second one-way valve 52, and finally the dust particles are collected in the dust collecting chamber 501, so that the outside glycerol is ensured to be relatively clean, and the glycerol and the dust in the dust collecting chamber 501 can be periodically cleaned.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. The utility model provides a medical waste burns waste gas's flow decomposition processing apparatus which characterized in that: comprising the following steps:
the device comprises a dust removing interlayer (1), wherein an annular dust settling chamber (101) is arranged at the upper part of the dust removing interlayer (1), and a deposition space (104) for storing glycerin is arranged at the lower part of the dust removing interlayer (1);
the neutralization cylinder (2) is used for containing neutralization liquid (201), the neutralization cylinder (2) is positioned at the inner side of the dust removing interlayer (1) and is connected above the deposition space (104), the neutralization cylinder (2) is connected with the deposition space (104) through a one-way valve (21), and a foam cylinder (6) is arranged outside the one-way valve (21);
the pneumatic stirring frame (3) is positioned in the dust fall chamber (101) and is rotationally connected relative to the dust fall chamber (101);
the ash tending fan (4), the ash tending fan (4) is positioned in the deposition space (104), and the ash tending fan (4) is connected to the bottom of the pneumatic stirring frame (3);
the dust accumulation cover (5), the dust accumulation cover (5) is positioned at the bottom of the deposition space (104), the lower end face of the dust tending fan (4) is attached to the upper end face of the dust accumulation cover (5), and a dust collection chamber (501) is formed below the dust accumulation cover (5);
the bubble cylinder (6) comprises an outer cover (61), a floating ball chamber (62), a valve port (63), a floating ball (64) and an inner cover (65), wherein the inner cover (65) is positioned on the inner side of the outer cover (61), the inner cover (65) is in sliding connection with the outer cover (61), the valve port (63) is positioned below the outer cover (61), the one-way valve (21) is arranged at the valve port (63), the floating ball chamber (62) is positioned above the outer cover (61), the floating ball (64) is positioned in the floating ball chamber (62), and the floating ball (64) is in transmission connection with the inner cover (65);
the height of the inner cover (65) is smaller than that of the outer cover (61), an exhaust hole window (651) is arranged on the inner cover (65), an exhaust groove (611) is formed in the outer wall of the outer cover (61), an air inlet space (601) is formed in the lower portion of the outer cover (61), an exhaust space (602) is formed in the inner side of the inner cover (65), and a plurality of air guide holes distributed in the longitudinal direction are formed in the exhaust hole window (651);
the ash-smoothing fan (4) comprises an upper baffle (41), an extrusion inclined plane (42) and a rear baffle (43), wherein the upper baffle (41) gradually extends downwards along the moving direction of the upper baffle and is connected with the upper end of the rear baffle (43), the rear baffle (43) is provided with the extrusion inclined plane (42) towards the moving direction, and an ash-smoothing space (401) is formed in front of the extrusion inclined plane (42).
2. The apparatus for the flow-through decomposition treatment of waste gas from medical waste incineration according to claim 1, wherein: the upper part of the floating ball chamber (62) is provided with an opening, the floating ball (64) is fixedly connected with the inner cover (65) through a connecting rod (641), and when the floating ball (64) floats up and down, the relative overlapping area between the exhaust hole window (651) and the exhaust groove (611) is changed.
3. The apparatus for the flow-through decomposition treatment of waste gas from medical waste incineration according to claim 2, wherein: the dust collecting device is characterized in that a first one-way valve (51) and a second one-way valve (52) are arranged between the dust collecting cover (5) and the outer edge of the dust tending fan (4), the first one-way valve (51) is located below the second one-way valve (52), and dust falling spaces (502) communicated with the dust collecting chamber (501) are formed in the inner sides of the first one-way valve (51) and the second one-way valve (52).
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| CN202110445104.3A CN113680162B (en) | 2020-08-03 | 2020-08-03 | Medical waste incineration waste gas's flow decomposition processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010768706.8A CN111729460B (en) | 2020-08-03 | 2020-08-03 | Flow decomposition treatment device for medical waste incineration waste gas |
| CN202110445104.3A CN113680162B (en) | 2020-08-03 | 2020-08-03 | Medical waste incineration waste gas's flow decomposition processing apparatus |
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| CN202010768706.8A Division CN111729460B (en) | 2020-08-03 | 2020-08-03 | Flow decomposition treatment device for medical waste incineration waste gas |
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| CN111729460A (en) | 2020-10-02 |
| CN111729460B (en) | 2021-06-01 |
| CN113680162A (en) | 2021-11-23 |
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